Kiln.



P. E. GOLDSMITH. KILN. APPLIOATION FILED APB.25,1905.

\ [Patented Mar.7,'19 11.

2 SHEETS-SHEET 1.

Inventor w. 92

Attorney 'rns ATEN. IC

MACHINERY COMPANY, 'OF HAMILTON, OHIO.

KIL'N.

sewer.

Specification of Letters latent.

Patented Mar. '7, 1911.

-Applicatio1i filed April 25, 1905. :Serial No..257,373.

T all whom it may concern:

Be it known that I, FREDERICK E. GOLD- SMITH, a citizen of the UnitedStates, and

v enware, pottery,

a resident of Middletown, in the county of Butler andState of Ohio, haveinvented certain new and useful Improvements in Kilns, of which thefollowing is a complete specification.

The present invention relates to kilns.

This kiln is adapted for burning all earthand other clayey objects,either in the mold, biscuit or in thecoating or glazing of the biscuit.Thekiln is not only adapted for the above described purposes, but itsuse is contemplated in any art to which it may be found to=beapplicable.

The pottery kilns in use at the present time are almost universallyconstructed of cupola form, openings being made in. the side-throughwhich the saggers containing the earthenware are placed, and having theV usual furnaces and accessories well known to the art. Thelaborinvolved in filling,

firing, cooliiig and removing the products of the kiln is a laborinvolving several days.

The present invention reduces the labor of days to a comparativelyfew-hours.

The construction and operation of the kiln will be'developed inthefollowing descrip-' tion, the invention consisting in thecombinationof parts set forth in the accoinpan ing claim.

Figure 1 representsa transverse vertical section of a kiln towhioh myimprovements have been applied. Fig. 2 is a plan of the same upon areduced scale. Fig. 3-is a side elevation of one ofthe trucks showingthe pedestal broken away. Fig. 4 represents a perspective detail of aportion of the floor of one of the trucks. Fig. 5 illustrates a methodof closing the joints of portions of the sectional kiln.

In the drawings :-1 represents a kiln,

which may be, for illustrative purposes, say

300 feet long. The kiln'i's open at both ends and is provided with aretort chamber 2 of the same length as the kiln and also openat bothends. This retort .is provided preferably with a long slot 3, the lengthof the kiln, projecting downwardly from the retort 2. Through thisretort is passed a table or a series of tables 4 provided withpedestals, supported by upwardly projecting pedestals (Ssupported upontrucks '7 runnin' through a truck chamber 8 at the bottom of the kiln.

The objects .to be burned or baked are placed upon the tables if at oneend of:the

kiln and the-"tables are fed therein, byipower- .driven meanscontinuously and slowly through the.kiln, einerging at the opposite endwith the products completely-burned.

Proceeding with the 'drawing:-9 represents rails upon which the trucksrun.

10 are-the wheels of the trucks preferablv provided witlrfiange dportions engaging the railsand with other-flangedportionsperniitting-the truck tolbe run upon a flooring not providedwith rails.

11- rcpresents truck axles.

1-2 are springs for .yieldingly supporting the pedestal 6. p 13 are theside walls. of the kiln.

M: are the furnaces which may be fed.

by gas through pipes '15 oraby coal upon grates 16.

lValls 17 are introduced between the'fun .nace chambers, the'truck camberS and the slottedvertical openin 3. All the parts subject todirect. action. ofthe-fire are made of fire clay, or the like.

19 are slabs of fire clay resting on the top of the furnaces l4 andprovided with flue passages 20 for conveying the products of combustioninto the chamber 21, surrounding the retort 2. This chamber .21is-connected at intervals with stacks 22.

The kiln may be economically built by providing't-he sides of thechamber 21 with vertical and horizontal linings 23 'upon which the slabs19 may rest, and providing fire clay bracket shaped moldings 23.1'estingin the sidewalls of the brick work. ,These brackets 524:- are providedwith seats forroofing-sections 25. .I prefer to PLOVldet-WO of thesesections of the same or similar shape with a dead air space 26betweenthem, and key them at top by keystone block 27 of fire clayforming the apex of the kiln. The

buck stays 28, braces 29 and side-beams 30 afford a convenient means ofanaking the kiln rigid and secure.

31 represents a means for moving the trucks and tables continuouslythrough the kiln, the particular means being an endless chain havingprojections 32 thereon at intervals adapted to be brought .into contactwith corresponding projections 33 depending from the truck portion ofthe tables, a succeeding chain projection being brought in contact witheach newly laden table bearside by side. Fig.

' from the time a 1 to some point midwa and also thereafter with theobject to be j recited the most effective firings of pottery,earthenware, tileand the like are accon1 I or offsets upon their ing themold or object to be burned; .After the respectivetrucks and the tablesare discharged at the opposite ends of the kiln. they becomeautomatically detached from the power impelling mechanism, andthereafter may be handled in any manner which will result in their beingeventually brought back to the feedingend' of the kiln freshly suppliedwith new objects to be baked.

Instead of there being-a seriesof tables 'andtrucks the table maybe anendless cont1nuously moving platform, capable of course of beingcontrolled, and an endless track may be used for the purpose. The kilnmay be built in a straight line or it may be ring shaped or endless.

The slabs l9 and parts 28, 24, 25,27 and the like may be of block formof any desirable size, produced by suitable molds, and arranged to breakjoints with one another. Likewise the retort 2 is preferably composed ofsections ofany suitable dimensions set a jointing these sections byforming flanges respective meeting edges and filling the same byinsertions of fire clay 34 at the joints; I

represents spuds which may be formed upon the top of the tables 4:. i

36 is an opening which may be formed in the retort 2 at intervalsleading to the exterior air for the purpose of carrying off anyundesirable fumes from the retort.

37 is a peep-holetube leading.- from the exterior of the kiln to theinterior of the retort above the table 4. These tubes may be placed atconvenient places in the length of the kiln. r v

In the movement of the tables through the retort it is generally verydesirable to gradually increase the temperature of the firing giventable enters the kiln y of the length thereof, to gradually decreasefiring until the table fired eventually leaves the kiln( By a processsimilar to that above the intensity of the plishe'd. The line 38illustrates diagrammatically the gradual rise of the temperature of thekiln to a point 39 intermediate represents a means ofwith the retortwalls 2,

of effecting this highly desired object consists in placingthe outletstacks 22 leading fromthe fires closer together where the heatis'desired to be more intensive, and to accordinglyincrease the'numberor intensity of the fires. will be common to the different fires orbatteries of fires and the products of combustion will be free to seekthe respective stacks'in either direction. Generally it will be'desirable to form a head at, each end of the I kiln which will serve inbreaking up any I undue draft that might be generated in the kiln byabnormal atmospheric conditions.

My kiln contemplates the simultaneous .movement of the tables, theirintroduction into the kiln, the firing, their exit and'the removal ofthe earthenware therefrom in one continuous operation.

The kiln may be made movable and travel over a stationary table 'in theretort. some instances it is desirable to do away and perhaps the slabs19, and carry the tables 4 in direct contact with the products ofcombustion in the heating chamber. In such case the tables may carrysaggers, properly 'sealed,;contain- 'ing the objects to be fired. Thetable or fio0r 4 may run up on and be supported by the walls of theheating chamber, if desired.

I claim as my invention I therein, fire-clay slabs resti'ngon the brack-'ets, a relatively long retort resting on the I slabs, the slabs beingseparated centrally to provide a slot communicating with the retort, atruck chamber operating the retort and communicating with the slot, firechambers beneath'the slabs, fire-proof walls-be tween the fire chambersand the slot and the truck chamber, 'a roof provided'with insulatingspaces i wall of the retort, and flu'es leading from If the firechambers to the space around the retort.

FREDERICK ERNST GOLDSMITH. Vitnesses: i HARRY VVALBURG,

ALBERT DELL.

The combination of side walls, brackets 6o- Insuch a plan the stacks22-.

and spaced away from the I

